City report · Quang Tri, Vietnam
Ðông Hà Air quality today
Air quality in Ðông Hà currently reads AQI 21 (Good): Air quality is satisfactory for everyone.
AQI 21
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 3.7
- tree cover
- 30.8%
- trees in this area
- 96.7K
- more trees needed
- 0
Measured across a 2 km radius around Dong Ha, Quang Tri, Vietnam (12.57 km²), from a satellite image of Aug 17, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Ðông Hà · AQI 21 (Good)
Ðông Hà's tree count comes to 96,664 trees across 12.56 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Ðông Hà today: AQI 21, Good
Main pollutant: PM2.5 · Observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 245 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 3 station cities within 245 km, e.g. Hue and Song Tri
Health signal
Air quality is satisfactory for everyone.
PM2.5
3.7
PM10
15.0
NO₂
2.7
O₃
106.0
SO₂
3.3
CO
313.0
- Outdoor exercise
- A good day to be active outside
- Windows
- Open them to air the house
- Mask
- Not needed
- Air purifier
- Not needed
Over the last 7 days, the CAMS air-quality model put Ðông Hà's daily AQI at 50 on average, from 39 on Nov 7 to an hourly peak of 73 on Nov 10.
Where Ðông Hà stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Ðông Hà: Healthy tree cover
30.8% tree cover against a 30% healthy-neighborhood target, across 12.56 km² of land.
Trees in this area
96,664
Target trees
96,664
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Ðông Hà lost?
Since 2001, the area within 10 km of Ðông Hà has lost about 6,870 hectares of forest (about 9,600 football pitches): 78% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 287 hectares (4.2%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from April 2017 of a 5 × 5 km area about 7 km southwest of the city center.
- Forest lost since 2001
- 6,870 haabout 9,600 football pitches
- Share of its forest
- 78%of what there was in 2000
- Cleared for good
- 287 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 41 hectares a year in 2021–2025, down from 232 hectares a year in 2016–2020. The worst year was 2011, when about 826 hectares of forest were lost.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 7 ha | 77 ha | 84 ha |
| 2002 | 20 ha | 67 ha | 87 ha |
| 2003 | 5 ha | 117 ha | 122 ha |
| 2004 | 11 ha | 148 ha | 159 ha |
| 2005 | 37 ha | 484 ha | 521 ha |
| 2006 | 24 ha | 431 ha | 455 ha |
| 2007 | 16 ha | 456 ha | 472 ha |
| 2008 | 1 ha | 133 ha | 134 ha |
| 2009 | 33 ha | 508 ha | 541 ha |
| 2010 | 16 ha | 245 ha | 261 ha |
| 2011 | 18 ha | 808 ha | 826 ha |
| 2012 | 8 ha | 581 ha | 589 ha |
| 2013 | 7 ha | 520 ha | 527 ha |
| 2014 | 12 ha | 547 ha | 559 ha |
| 2015 | 23 ha | 152 ha | 175 ha |
| 2016 | 20 ha | 204 ha | 224 ha |
| 2017 | 7 ha | 336 ha | 343 ha |
| 2018 | 3 ha | 214 ha | 217 ha |
| 2019 | 7 ha | 229 ha | 236 ha |
| 2020 | 3 ha | 135 ha | 138 ha |
| 2021 | 2 ha | 51 ha | 53 ha |
| 2022 | 1 ha | 46 ha | 48 ha |
| 2023 | 1 ha | 35 ha | 36 ha |
| 2024 | under 1 ha | 44 ha | 45 ha |
| 2025 | 4 ha | 19 ha | 23 ha |
What is causing deforestation around Ðông Hà?
- Loggingcan grow back96% · 6,580 ha
- Towns and roadscleared for good2.3% · 157 ha
- Farms, pasture and plantationscleared for good1.2% · 84 ha
Also: mining and energy, unknown causes.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
Forest gained and lost, 2000–2020
- Forest in 2000
- 12,200 ha
- Forest in 2020
- 9,090 ha
- Overall change
- −3,100 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Ðông Hà shrank from about 12,200 hectares to 9,090 hectares, a net loss of about 3,100 hectares (−25%). New forest grew on about 446 hectares, but 3,540 hectares were lost.
These 2000 and 2020 maps, from the University of Maryland, count any land with trees taller than 5 m as forest, including plantations and orchards. Forest that was cut or burned and had grown back by 2020 counts in both years, so the loss here is smaller than the yearly figures.
These figures cover everything within 10 km of the city center, a wider area than the report above, because forest is usually lost at a city's edges.
Source: Hansen/UMD/Google/USGS/NASA, Global Forest Change (GFC-2025-v1.13); causes: WRI/Google DeepMind drivers of forest loss; both CC BY 4.0, summed by Airleaf for each area. Forest gained and lost 2000–2020: Potapov et al. 2022, UMD GLAD Global Land Cover and Land Use Change, CC BY 4.0. Images: contains modified Copernicus Sentinel data. How it's measured
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Frequently asked
Questions about Ðông Hà
What is the air quality (AQI) in Ðông Hà right now?
The latest reading for Ðông Hà shows an AQI of 21 (Good), observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 245 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Ðông Hà today?
At AQI 21 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Ðông Hà been like this week?
Over the last 7 days, the CAMS air-quality model put Ðông Hà's daily AQI at 50 on average, from 39 on Nov 7 to an hourly peak of 73 on Nov 10. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Ðông Hà lost since 2001?
Since 2001, the area within 10 km of Ðông Hà has lost about 6,870 hectares of forest (about 9,600 football pitches): 78% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 287 hectares (4.2%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss is slowing down: about 41 hectares a year in 2021–2025, down from 232 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Ðông Hà shrank from about 12,200 hectares to 9,090 hectares, a net loss of about 3,100 hectares (−25%). New forest grew on about 446 hectares, but 3,540 hectares were lost.
What is the tree count in Ðông Hà?
Ðông Hà has an estimated 96,664 trees across the 12.56 km² of land measured — 30.8% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Ðông Hà need?
Ðông Hà has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Ðông Hà's air quality and tree cover measured?
Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Dong Ha; the tree count is an estimate derived from that cover.
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